<template>
  <view class="goods-item">
    <!-- 左侧图片区域-->
    <view class="goods-item-left">
      <radio :checked="goods.goods_state" color="#c00000" v-if="showRadio" @click="radioClickHandler"></radio>
      <image :src="goods.goods_small_logo || defaultPic" class="goods-pic"></image>
    </view>
    <!-- 右侧信息区域-->
    <view class="goods-item-right">
      <!-- 商品标题-->
      <view class="goods-name">{{goods.goods_name}}</view>
      <view class="goods-info-box">
        <!-- 商品价格-->
        <view class="goods-price">￥ {{goods.goods_price | toFixed}}</view>
        <!-- 商品数量-->
        <uni-number-box :min="1" :value="goods.goods_count" v-if="showNum" @change="numChangeHandler"></uni-number-box>
      </view>
    </view>
  </view>
</template>
<script>
   export default{
      props:{
        goods:{
          type:Object,
          default:{}
        },
        //是否展示图片左侧的 radio
        showRadio:{
          type:Boolean,
          //默认不展示radio组件
          default:false
        },
        showNum:{
          type:Boolean,
          //默认不展示
          default:false
        }
      },
      data(){
        return{
          //有些图片失效了，失效的图片展示此图片
          defaultPic:'https://img3.doubanio.com/f/movie/8dd0c794499fe925ae2ae89ee30cd225750457b4/pics/movie/celebrity-default-medium.png'
        }
      },
      filters:{
        toFixed(num){
          return  Number(num).toFixed(2)
        }
      },
      methods:{
        //更换商品勾选状态
        radioClickHandler(){
          //触发自定义事件
          this.$emit('radio-change',{
            //商品Id
            goods_id:this.goods.goods_id,
            //商品最新的勾选状态
            goods_state:!this.goods.goods_state
          })
        },
        //修改商品数量的函数
        numChangeHandler(val){
          this.$emit('num-change',{
            goods_id:this.goods.goods_id,
            //商品最新数量
            goods_count: val
          })
        }
      }
   }
</script>
<style lang="scss">
  .goods-item {
    width: 750rpx;
    box-sizing: border-box;
    display: flex;
    flex:1;
    padding: 10px 5px;
    border-bottom: 1px solid #f0f0f0;

    .goods-item-left {
      margin-right: 5px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      
      .goods-pic {
        width: 100px;
        height: 100px;
        display: block;
      }
    }

    .goods-item-right {
      display: flex;
      flex-direction: column;
      justify-content: space-between;

      .goods-name {
        font-size: 13px;
      }
      
      .goods-info-box{
        display: flex;
        align-items: center;
        justify-content: space-between;
      }

      .goods-price {
        font-size: 16px;
        color: #c00000;
      }
    }
  }
</style>
